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AMU Medical AMU Solved Paper-1998

  • question_answer
    The moment of inertia, of an annular cylinder of mass M, length L and inner and outer radii\[{{R}_{1}}\]and\[{{R}_{2}}\]about the axis of the cylinder is

    A)  \[M(R_{2}^{2}-R_{1}^{2})/2\]

    B)  \[\frac{M}{2{{L}^{2}}}(R_{2}^{4}-R_{1}^{4})\]

    C)  \[M(R_{2}^{2}+R_{1}^{2})/2\]

    D)  \[M{{({{R}_{2}}-{{R}_{1}})}^{2}}/2\]

    Correct Answer: A

    Solution :

    : For a hollow cylinder, \[I=\frac{M(R_{2}^{2}-R_{1}^{2})}{2}\]


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